Marvel has released a new poster for The Avengers.  As you can see, they have assembled, so check that off the list.  Step two: fight unseen menace.  Everyone seemed to get the memo except for Captain America (Chris Evans) who thought this was the day for striking poses.

Hit the jump to check out the poster.  The film also stars Robert Downey Jr., Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Mark Ruffalo, Tom Hiddleston, Stellan Skarsgård, and Samuel L. Jackson.  The Avengers opens in 3D on May 4th.  The new trailer hits tomorrow at 9:00am PST.

Poster via Marvel.

Here's the official synopsis for The Avengers:

Marvel Studios presents in association with Paramount Pictures “Marvel’s The Avengers”–the Super Hero team up of a lifetime, featuring iconic Marvel Super Heroes Iron Man, The Incredible Hulk, Thor, Captain America, Hawkeye and Black Widow. When an unexpected enemy emerges that threatens global safety and security, Nick Fury, Director of the international peacekeeping agency known as S.H.I.E.L.D., finds himself in need of a team to pull the world back from the brink of disaster. Spanning the globe, a daring recruitment effort begins. Starring Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Jeremy Renner and Samuel L. Jackson, and directed by Joss Whedon, “Marvel’s The Avengers” is based on the ever-popular Marvel comic book series “The Avengers,” first published in 1963 and a comics institution ever since. Prepare yourself for an exciting event movie, packed with action and spectacular special effects, when “Marvel’s The Avengers” assemble in summer 2012. In “Marvel’s The Avengers,” superheroes team up to pull the world back from the brink of disaster when an unexpected enemy threatens global security.